RFR: 8164467: ES6 computed properties are implemented wrongly

Sundararajan Athijegannathan sundararajan.athijegannathan at oracle.com
Fri Sep 23 04:25:48 UTC 2016

+1, Nice!


On 9/22/2016 9:06 PM, Hannes Wallnöfer wrote:
> Please review 8164467: ES6 computed properties are implemented wrongly.
> Bug: https://bugs.openjdk.java.net/browse/JDK-8164467
> Webrev: http://cr.openjdk.java.net/~hannesw/8164467/webrev.00/
> This makes our support of ES6 computed property names fully spec compliant with one little exception: object literals with mixed computed and static property names should preserve iteration order of properties. Since we create a static property map of static properties and then add computed properties to those maps at runtime, computed properties are always at the end of iteration. I don’t know how to fix this, but I don’t consider it a big problem.
> Other than that, the tests included in this patch pretty much mirror the tests in test262, minus the ones that require features we don’t yet support.
> Although this changes the code for object literals in CodeGenerator a bit, ES5 code should not be affected, i.e. the code generated in absence of computed properties should be exactly the same as before. Same in Parser: I had to rewrite the code for reparsing ES6 methods a bit to handle methods with computed property names, but that should only affect that special case.
> Thanks,
> Hannes  

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